GB/T 9074.1-2018: Translated English of Chinese Standard. (GBT 9074.1-2018, GB/T9074.1-2018, GBT9074.1-2018): Bolt or screw and washer assemblies with plain washersThis Part of GB/T 9074 specifies the type size, technical conditions and marks for bolt or screw and washer assemblies with plain washers. This Part applies to bolt or screw and washer assemblies with plain washers of which the thread specifications are M2~M12, there is a flat bearing surface, the performance levels of bolt or screw are levels 8.8, 9.8 and 10.9, the hardness level of plain washer is 200 HV or 300 HV. |
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Indhold
3 | |
Scope | 6 |
Type size | 7 |
Technical conditions and reference standards | 10 |
Combination of bolt or screw and washer | 11 |
Marks | 12 |
Annex A informative Manufacturing method for bolt or screw and washer assemblies with plain washers | 13 |
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Almindelige termer og sætninger
5783 and standard according to GB/T assemblies with plain assembly of hexagon bearing surface bolt or screw bolt with indentation China's fastener basic Coatings GB/T code of bolt coil spring lock complies with GB/T conditions and reference Conical spring washers contact traces countersunk external toothed Cross recessed hexagon Cross recessed pan Cross recessed small diameter of transition Edition Electroplated eqv ISO external toothed lock Fasteners of Standardization full thread head screws GB/T Hexagon head bolt lock washer assemblies lock washer external meets GB/T packaging GB/T pan head screw Phosphating technical requirements plain washer assemblies recessed hexagon bolt recessed pan head recessed small pan reference standards screw and washer serrated lock washer single coil spring small pan head spring lock washer surface treatment Table technical conditions toothed lock washer U-type sinking-cutting slot under-head fillet washer and plain washer assembly GB/T washer external teeth washer for assembly washer hardness level Zhejiang